1.2 Detalles de contacto de las personas de referencia e instituciones involucradas en la evaluación y la documentación de la Tecnología

Nombre de la(s) institución(es) que facilitaron la documentación/ evaluación de la Tecnología (si fuera relevante)

Food and Agriculture Organization of the United Nations (FAO) - Italia

Nombre de la(s) institución(es) que facilitaron la documentación/ evaluación de la Tecnología (si fuera relevante)

Ministry of Agriculture and Rural Development of Ethiopia (Ministry of Agriculture and Rural Development) - Etiopía

1.3 Condiciones referidas al uso de datos documentados mediante WOCAT

¿Cuándo se compilaron los datos (en el campo)?

30/05/2011

El compilador y la/s persona(s) de referencia claves aceptan las condiciones acerca del uso de los datos documentados mediante WOCAT:

Sí

2.1 Breve descripción de la Tecnología

Definición de la Tecnología:

It is a structural measure constructed across the slope to control erosion and increase soil moisture.

2.2 Descripción detallada de la Tecnología

Descripción:

Sorghum terrace of Diredawa locally called as Daga is constructed by placing stone walls across a slope following contour lines. The development of Sorghum terrace involves activities of creating an embankment at a given spacing, which depends on slope. Cultivation in the terrace is done by the use of Dengora (local name for spade like hand tool) if the land is sloping and by oxen if land slope is gentle (<8%). The purpose of developing Sorghum Terrace of Diredawa (STD) is to collect as much rainwater as possible for growing sorghum, which is planted by broad casting. Sorghum is the staple food in the area. Since rainfall is erratic, the STD allows more water to be stored in the soil. STD is maintained every year and also upgraded while performing different farm activities (Ploughing, Weeding, etc.,). Every time maintenance is made breaks in the terrace are repaired and additional height given to the terrace until it forms bench. STD is very suitable to areas with erratic rainfalls, sloping cultivated fields and land having abandant stones for construction. It is suitable to areas with semi-arid to arid climatic conditions and soils ranging from shallow depth to moderately deep.

2.5 País/ región/ lugares donde la Tecnología fue aplicada y que se hallan comprendidos por esta evaluación

2.6 Fecha de la implementación

Si no se conoce el año preciso, indique la fecha aproximada:

• hace más de 50 años atrás (tradicional)

2.7 Introducción de la Tecnología

Especifique cómo se introdujo la Tecnología:

• mediante proyectos/ intervenciones externas

3.1 Propósito(s) principal(es) de la Tecnología MST

• mejorar la producción
• reducir, prevenir, restaurar la degradación del suelo

3.2 Tipo(s) actuales de uso de la tierra donde se aplica la Tecnología

Comentarios:

Major land use problems (compiler’s opinion): The major land use problems in the areas with out SWC are overgrazing/overbrowsing by livestock specially by the small stock. Goats over browse shrubs in hill slope letting it to be bare and hence enhance erosion. Cutting of trees/shrub for fire wood denudes hillsides.

Major land use problems (land users’ perception): Declining status of the vegetative cover led to lack of wood for construction and fire wood.

Semi-nomadism / pastoralism: Yes

Grazingland comments: A substantial area has been closed around the technology area. Livestock owners are given the opportunity to cut grass from enclosures and carry it home to stall feed the animals. Most farmers like to stallfeed their animals. Number of livestock in the area is small and is limited to 1 or 2 of large stock and 2-3 of small stocks.

Problems / comments regarding forest use: Individual households plant agroforestry trees (fruits, shade trees, hedgerows) in the homestreads and on field boundaries. Trees naturally grown are maintained in scattered manner in crop fields. These are primarily used as shelter for animals that are tethered and also used as fodder and fuelwood.

Forest products and services: timber, fuelwood, grazing / browsing

Type of cropping system and major crops comments: Sorghum-beans

3.3 Información adicional sobre el uso de tierras

Provisión de agua para la tierra donde se aplica la Tecnología:

• de secano

Comentarios:

Water supply: Also post-flooding

Número de temporadas de cultivo por año:

• 1

Especifique:

Longest growing period in days: 180 Longest growing period from month to month: Apr - Oct

3.4 Grupo MST al que pertenece la Tecnología

• cobertura de suelo/ vegetal mejorada
• medida de pendiente transversal

3.5 Difusión de la Tecnología

Especifique la difusión de la Tecnología:

• distribuida parejamente sobre un área

Si la tecnología se halla difundida homogéneamente en un área, indique el área aproximada que cubre:

• 100-1,000 km2

3.6 Medidas MST que componen la Tecnología

3.7 Principales tipos de degradación del suelo encarados con la Tecnología

Comentarios:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion

3.8 Prevención, reducción o restauración de la degradación del suelo

Especifique la meta de la Tecnología con relación a la degradación de la tierra:

• reducir la degradación del suelo
• restaurar/ rehabilitar tierra severamente degradada

Comentarios:

Main goals: mitigation / reduction of land degradation

Secondary goals: rehabilitation / reclamation of denuded land

4.1 Dibujo técnico de la Tecnología

4.2 Especificaciones técnicas/ explicaciones del dibujo técnico

DireDawa

Technical knowledge required for field staff / advisors: moderate

Technical knowledge required for land users: moderate

Main technical functions: reduction of slope angle, increase of infiltration, increase / maintain water stored in soil

Secondary technical functions: water harvesting / increase water supply, sediment retention / trapping, sediment harvesting

Early planting
Material/ species: Sorghum + Chat
Quantity/ density: 17500 +400

Mixed cropping / intercropping
Material/ species: Sorghum + Potato

Contour planting / strip cropping
Material/ species: Sorghum + Chat

Mulching
Material/ species: Sorghu Stalk/residue

Green manure
Material/ species: Sorghum/Chat-beans

Manure / compost / residues
Material/ species: Sorghum/Chat

Contour tillage
Remarks: Ploughing along the contour

Aligned: -contour
Vegetative material: O : other
Number of plants per (ha): 17500-2000
Spacing between rows / strips / blocks (m): 0.2
Vertical interval within rows / strips / blocks (m): 0.2-0.3

Perennial crops species: Chat

Slope (which determines the spacing indicated above): 10.00%

If the original slope has changed as a result of the Technology, the slope today is (see figure below): 3.00%

Gradient along the rows / strips: 0.00%

Terrace: backward sloping
Vertical interval between structures (m): 1-2
Spacing between structures (m): 4-6
Height of bunds/banks/others (m): 1
Width of bunds/banks/others (m): 0.5-2
Length of bunds/banks/others (m): 50-300

Bund/ bank: level
Vertical interval between structures (m): 1-2
Height of bunds/banks/others (m): 1
Width of bunds/banks/others (m): 0.3-0.5
Length of bunds/banks/others (m): 50-300

Construction material (earth): earth is placed upslope of the stone wall to provide reinforcement

Construction material (stone): stone is used for the embankment

Slope (which determines the spacing indicated above): 12%

If the original slope has changed as a result of the Technology, the slope today is: 4%

Lateral gradient along the structure: 0%

Vegetation is used for stabilisation of structures.

Change of land use type: from grazing to cultivated land

Control / change of species composition: from mono-cropping to mixed cropping

4.3 Información general sobre el cálculo de insumos y costos

otra / moneda nacional (especifique):

Birr

Indique la tasa de cambio de USD a la moneda local (si fuese relevante): 1 USD =:

8,6

4.4 Actividades de establecimiento

	Actividad	Tipo de medida	Momento
1.	Chat planting by cutting	Vegetativas	early rains
2.	Sorghum planting	Vegetativas	early rains
3.	Sowing	Vegetativas	with rains & withdrawal of rains
4.	Contour marking & layout	Estructurales	dry period/after harvest
5.	Digging foundation	Estructurales	after light rains/moist soil
6.	Stone collection	Estructurales	dry season
7.	Stone wall placement	Estructurales	after light rains/moist soil
8.	Earth support upslope	Estructurales	after light rains/moist soil
9.	Clear vegetation	Manejo	dry period
10.	Construct Daga	Manejo	dry season
11.	Land preparation	Manejo	after the 1st rains

4.5 Costos e insumos necesarios para el establecimiento

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	ha	1,0	272,0	272,0	50,0
Equipo	Animal traction	ha	1,0	20,0	20,0	100,0
Equipo	Tools	ha	1,0	4,0	4,0	100,0
Material para plantas	Seeds	ha	1,0	5,0	5,0	100,0
Fertilizantes y biocidas	Compost manure	ha	1,0			100,0
Costos totales para establecer la Tecnología					301,0

Comentarios:

Duration of establishment phase: 12 month(s)

4.6 Actividades de establecimiento/ recurrentes

	Actividad	Tipo de medida	Momento/ frequencia
1.	Tillage	Agronómicas	dry season / 2-3
2.	Sowing	Agronómicas	dry season / each cropping season
3.	Cultivation	Agronómicas	early rains, after sawing, before flowering / each cropping season
4.	Weeding	Agronómicas	after flowrinf / each cropping season
5.	Harvest	Agronómicas	dry season, after crop matures / each cropping season
6.	Cultivation	Vegetativas	during rains /2
7.	Weeding	Vegetativas	withdrawal of rains /1
8.	Stone collection	Estructurales	dry season/1
9.	Repairing breaks	Estructurales	before planting/1
10.	Add stone wall height/upgrading	Estructurales	before planting/1
11.	Plant stablizing/ trees/shrubs	Estructurales	after rains/1
12.	Planting of useful trees & fruit trees	Manejo	after rains / annual
13.	Cultivation and weeding	Manejo	during rains / 2

4.7 Costos e insumos necesarios para actividades de mantenimiento/ recurrentes (por año)

	Especifique insumo	Unidad	Cantidad	Costos por unidad	Costos totales por insumo	% de los costos cubiertos por los usuarios de las tierras
Mano de obra	Labour	ha	1,0	40,7	40,7	100,0
Indique los costos totales para mantenecer la Tecnología					40,7

Comentarios:

Machinery/ tools: hand tools for digging earth and breaking stone

The cost is mainly for construction and maintenance of the structural measures and cost of production.

4.8 Factores más determinantes que afectan los costos:

Describa los factores más determinantes que afectan los costos:

Slope:- As the slope increases cost of construction increases, Soil depth:- when the soil depth is shallow digging the foundation becomes more costly.

5.1 Clima

5.2 Topografía

Comentarios y especificaciones adicionales sobre topografía :

Landforms: Also hill slopes (ranked 2) and valley floors (ranked 3)
Slopes on average: Also hilly (ranked 2) and moderate as well as gentle (both ranked 3)

5.3 Suelos

Si se halla disponible, adjunte una descripción completa de los suelos o especifique la información disponible, por ej., tipo de suelo, pH/ acidez de suelo, capacidad de intercambio catiónico, nitrógeno, salinidad, etc. :

Soil fertility is low (ranked 1), medium (ranked 2) and very low (ranked 3)
Soil drainage/infiltration is good
Soil water storage capacity is low (ranked 1), medium (ranked 2) and very low (ranked 3)

5.6 Las características de los usuarios de la tierra que aplican la Tecnología

Indique otras características relevantes de los usuarios de las tierras:

Population density: 50-100 persons/km2
Annual population growth: 2% - 3%
40% of the land users are average wealthy and own 60% of the land.
60% of the land users are poor and own 40% of the land.
Off-farm income specification: Land users who have SWC on their land spend more time in agricultural activities compared to those who have not applied SWC measures.
Level of mechanization: Manual work (ranked 1, on steeper slopes where terraces are closer manual labour is used) and animal traction (ranked 2, on gentle slopes animal traction is used for tillage and cultivation)
Market orientation of cropland production system: Subsistence ( They do not produce enough for their own consumption in case of sorghum/cereal crops but chat is produced more for market, ranked 1) and mixed (ranked 2)
Market orientation of forest production system: Subsistence (Chat is planted for consumption as well as market, ranked 1) and mixed (Farmers sell part of the grain they have produced)
Market orientation of production system: mixed (subsistence and commercial) (Farmers sell part of the grain they have produced.)

5.7 Área promedio de la tierra que pertenece a o es arrendada por usuarios de tierra que aplican la Tecnología

6.1 Impactos in situ demostrados por la Tecnología

Impactos socioeconómicos

Producción

Ingreso y costos

Impactos socioculturales

Impactos ecológicos

Ciclo de agua/ escurrimiento de sedimento

Suelo

Otros impactos ecológicos

6.2 Impactos fuera del sitio demostrados por la Tecnología

6.4 Análisis costo-beneficio

¿Cómo se comparan los beneficios con los costos de establecimiento (desde la perspectiva de los usuarios de tierra)?

¿Cómo se comparan los beneficios con los costos de mantenimiento/ recurrentes (desde la perspectiva de los usuarios de tierra)?

6.5 Adopción de la Tecnología

De todos quienes adoptaron la Tecnología, ¿cuántos lo hicieron espontáneamente, es decir, sin recibir incentivos/ pagos materiales?

• 10-50%

Comentarios:

30% of land user families have adopted the Technology with external material support

20% of land user families have adopted the Technology without any external material support

6.7 Fuerzas/ ventajas/ oportunidades de la Tecnología

Fuerzas/ ventajas/ oportunidades desde la perspectiva del usuario de la tierra
Production increased How can they be sustained / enhanced? external support with incentives such as tools, material for constructing structures for flood and runoff diversion.
more soil moisture How can they be sustained / enhanced? integration of measures that reduces evapotranspiration
Soil erosion controlled How can they be sustained / enhanced? exercise effective maintenance

Fuerzas/ ventajas/ oportunidades desde la perspectiva del compilador o de otra persona de referencia clave
have higher efficiency for retaining water in the soil How can they be sustained / enhanced? Strengthening maintenance, avoid livestock,exercise stall feeding, enhancing runoff and flood farming
mantenance is simple because material is available
Forms bench terrace easily
Soil loss is remarkably reduced
Production doubled and even increased by 150-200%

6.8 Debilidades/ desventajas/ riesgos de la Tecnología y formas de sobreponerse a ellos

Debilidades/ desventajas/ riesgos desde la perspectiva del compilador o de otra persona de referencia clave	¿Cómo sobreponerse a ellas?
hindering movement	provide path way for humans and oxen during farm operation